deguodaigou/pages/shopping/shopping.js

// pages/shopping/shopping.js
import { request } from "../../utils/bin"
Page({

    /**
     * 页面的初始数据
     */
    data: {
        list: [],
        select: [],
        userid: 0,
        price: "0.00"
    },
    sel(a) {
        console.log(a)
        request({
            url: "Cart/updateSelect",
            urldata: {
                id: this.data.list[a.detail.index].goods_id,
                select: this.data[`select[${a.detail.index}]`] ? 1 : 0
            }
        }).then((res) => {
            this.setData({
                [`select[${a.detail.index}]`]: !a.detail.select
            })
            this.num();
        })

    },

    /**
     * 生命周期函数--监听页面加载
     */
    getlist() {
        request({
            url: "Cart/cartList/session_id/" + wx.getStorageSync('openid'),
            urldata: {
                user_id: this.data.userid
            }
        }).then((res) => {
            console.log(res)
            this.setData({
                list: res.data.result
            })
            // this.num()
            this.calls();

        })
    },
    onLoad: function (options) {
        request({
            url: "User/validateOpenid"
        }).then((res) => {
            console.log(res)
            this.setData({
                userid: res.data.data.user_id
            })
            this.getlist()

        })
    },
    sub() {
        let sel = 0;
        for (let i in this.data.select) {
            // console.log(i)
            if (this.data.select[i]) {
                // num += parseFloat(this.data.list[i].goods_price) * 100
                sel++
            }
        }
        if (sel > 0) {
            wx.navigateTo({
                url: "/pages/orderconfirm/orderconfirm"
            })
        }

    },
    /**
     * 生命周期函数--监听页面初次渲染完成
     */
    onReady: function () {

    },

    /**
     * 生命周期函数--监听页面显示
     */
    onShow: function () {
        this.onLoad()
    },

    /**
     * 生命周期函数--监听页面隐藏
     */
    onHide: function () {

    },

    /**
     * 生命周期函数--监听页面卸载
     */
    onUnload: function () {

    },

    /**
     * 页面相关事件处理函数--监听用户下拉动作
     */
    onPullDownRefresh: function () {

    },

    /**
     * 页面上拉触底事件的处理函数
     */
    onReachBottom: function () {

    },
gai(a){
    console.log(a)
    for(let i in this.data.list){
        if(this.data.list[i].id == a.detail.id){
            let text = `list[${i}].goods_num`
            this.setData({
                [text]:a.detail.num
            })
            console.log(123)

        }
    }
    this.num()
},
    /**
     * 用户点击右上角分享
     */
    onShareAppMessage: function () {

    },
    num() {
        let num = 0;
        let sel = 0;
        for (let i in this.data.select) {
            console.log(i)
            if (this.data.select[i]) {
                num += parseFloat(this.data.list[i].goods_price) * 100 * this.data.list[i].goods_num
                sel++
            }
        }
        if (sel == this.data.list.length && this.data.list.length != 0) {
            this.setData({
                all: true
            })
        } else {
            this.setData({
                all: false
            })
        }
        this.setData({
            price: num / 100
        })
    },
    call() {
        let sel = 0;
        let select = []
        for (let i in this.data.list) {
            console.log(i)
            if (this.data.select[i]) {
                //  num += parseFloat(this.data.list[i].goods_price)*100
                sel++
            } else {
                select[i] = true
            }
        }
        if (sel == this.data.list.length) {
            request({
                url: "Cart/updateAllSelect",
                urldata: {
                    open_id: wx.getStorageSync("openid"),
                    selected: 0
                }
            }).then((res) => {
                this.setData({
                    all: false,
                    select: []
                })
                this.num()

            })

        } else {
            request({
                url: "Cart/updateAllSelect",
                urldata: {
                    open_id: wx.getStorageSync("openid"),
                    selected: 1
                }
            }).then((res) => {
                this.setData({
                    all: true,
                    select
                })
                this.num()

            })

        }

    },
    calls() {
        let sel = 0;
        let select = []
        for (let i in this.data.list) {
            console.log(i)

            select[i] = true

        }

        this.setData({
            all: true,
            select
        })
        this.num()

    },
    del() {
        for (let i in this.data.list) {
            // console.log(i)
            if (this.data.select[i]) {
                //  num += parseFloat(this.data.list[i].goods_price)*100
                //  sel++
                request({
                    url: "Cart/delCart",
                    urldata: {
                        id: this.data.list[i].id
                    }
                }).then((res) => {
                    console.log('删除成功')
                    this.setData({
                        list: [],
                        select: [],
                        userid: 0,
                        price: "0.00"
                    })
                    this.onLoad()
                })
            }
        }
    }
})